A Higgs boson was discovered in 2012 by the ATLAS and CMS collaborations [1]}, [2]}. The properties of the discovered Higgs boson has been predominantly measured using bosonic decay mode, \(H\rightarrow \gamma \gamma \) , \(H\rightarrow ZZ\)  and \(H\rightarrow WW\)  in LHC Run 1 and Run 2 [3]}, [4]}, [5]}. The measured properties are compatible with the predictions of the Standard Model (SM) within uncertainties. However, a great mystery on the interaction (Yukawa coupling) between Higgs and fermions still remains in the Higgs sector of the SM. It is important to experimentally measure Yukawa coupling for each fermion and to test if the coupling is proportional to fermion mass to solve the origin of the fermion mass and generation.
Direct evidences for the coupling of the Higgs boson to fermions were established via the decay to \(\tau \) -leptons through the combination of ATLAS and CMS Run 1 [6]} and recently the Higgs production associated with top quarks [7]}.
Table REF  shows the branching ratio of Higgs decay to fermion [8]}. The coupling of Higgs boson to bottom quark is not observed yet although the decay branching ratio is dominant at \(m_{H}=125\)  GeV. In LHC Run 2 the observation of \(H\rightarrow b\overline{b}\)  mode is one of big milestones in Higgs physics of the ATLAS experiment [9]}.
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